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(2tan30^(@))/(1-tan^(2)30)...

(2tan30^(@))/(1-tan^(2)30)

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find the value of (2 tan 30^(@))/(1-tan^(2)30^(@))

Verify that sin60^(@)=(2tan 30^(@))/(1+tan^(2)30^(@))

(2 tan 30^(@))/( 1-tan ^(2) 30^(@)) =

(2 tan 30^(@))/( 1-tan ^(2) 30^(@)) =

(2 tan 30^(@))/( 1-tan ^(2) 30^(@)) = (a) cos 60 (b) sin 60 (c) tan 60 (d) sin 30

Prove that : (2tan^(2)30^(@))/(1-tan^(2)30^(@))+sec^(2)45^(@)-cot^(2)45^(@)=sec60^(@) .

If (2tan^(2)30^(@))/(1-tan^(2)30^(@))+sec^(2)45^(@)-sec^(2)0^(@)=xsec60^(@) , then the value of x is